[PATCH 4/5] pipeline: rpi: common: Add wallclock timestamp support

[David Plowman]

A ClockRecovery object is added for derived classes to use, and
wallclock timetamps are copied into the request metadata for
applications.

Signed-off-by: David Plowman <david.plowman at raspberrypi.com>
---
 src/libcamera/pipeline/rpi/common/pipeline_base.cpp | 2 ++
 src/libcamera/pipeline/rpi/common/pipeline_base.h   | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/src/libcamera/pipeline/rpi/common/pipeline_base.cpp b/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
index 6f278b29..34971973 100644
--- a/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
+++ b/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
@@ -1509,6 +1509,8 @@ void CameraData::fillRequestMetadata(const ControlList &bufferControls, Request
 {
 	request->metadata().set(controls::SensorTimestamp,
 				bufferControls.get(controls::SensorTimestamp).value_or(0));
+	request->metadata().set(controls::FrameWallClock,
+				bufferControls.get(controls::FrameWallClock).value_or(0));
 
 	if (cropParams_.size()) {
 		std::vector<Rectangle> crops;
diff --git a/src/libcamera/pipeline/rpi/common/pipeline_base.h b/src/libcamera/pipeline/rpi/common/pipeline_base.h
index aae0c2f3..9aa591d6 100644
--- a/src/libcamera/pipeline/rpi/common/pipeline_base.h
+++ b/src/libcamera/pipeline/rpi/common/pipeline_base.h
@@ -20,6 +20,7 @@
 #include "libcamera/internal/bayer_format.h"
 #include "libcamera/internal/camera.h"
 #include "libcamera/internal/camera_sensor.h"
+#include "libcamera/internal/clock_recovery.h"
 #include "libcamera/internal/framebuffer.h"
 #include "libcamera/internal/media_device.h"
 #include "libcamera/internal/media_object.h"
@@ -237,6 +238,8 @@ protected:
 	virtual int platformRegister(std::unique_ptr<CameraData> &cameraData,
 				     MediaDevice *unicam, MediaDevice *isp) = 0;
 
+	ClockRecovery wallClockRecoery_;
+
 private:
 	CameraData *cameraData(Camera *camera)
 	{
-- 
2.39.5